eglfs: Fix hardware cursor with kms

We have to set a default arrow cursor on startup because non-widget
apps will not request one. This is how we behave with non-kms backends
too.

Change-Id: I11b7bf96e46f570bc49f3e8701616b13c480fda6
Reviewed-by: Louai Al-Khanji <louai.al-khanji@theqtcompany.com>

src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsintegration.cpp

@@ -447,7 +447,11 @@ QEglFSKmsCursor::QEglFSKmsCursor(QEglFSKmsScreen *screen)
         initCursorAtlas();
     }
 
-    drmModeMoveCursor(m_screen->device()->fd(), m_screen->output().crtc_id, 0, 0);
+#ifndef QT_NO_CURSOR
+    QCursor cursor(Qt::ArrowCursor);
+    changeCursor(&cursor, 0);
+#endif
+    setPos(QPoint(0, 0));
 }
 
 QEglFSKmsCursor::~QEglFSKmsCursor()